E-Torque Motor-Generator Unit Oil?

[waypoint]

New '21 Sahara Unlimited with 3.6L E-Torque and auto transmission, I'm at 2100 miles and reading the owner's manual. In the Fluid Capacities section it lists the "3.6L Motor Generator Unit" as having a 1.9 quart capacity. There is no listed oil change interval or oil specification for it. Is it a sealed unit, just run to failure and hope it dies within warranty?

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[Gregj]

Is that coolant not oil? It is liquid cooled.
Gregj

 

[mwilk012]

Is that coolant not oil? It is liquid cooled.
Gregj

This is correct. It is on page 510 of the owners manual.

3.6L Motor Generator Unit (MGU) (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile Formula or equivalent) : 1.9 Quarts

 

[waypoint]

This is correct. It is on page 510 of the owners manual.

3.6L Motor Generator Unit (MGU) (Mopar Antifreeze/Engine Coolant 10 Year/150,000 Mile Formula or equivalent) : 1.9 Quarts

Thanks, that makes sense. Really enjoying the Jeep thus far, after selling my '80 CJ5 back in 1990.

 

[AFD]

the question is which fluid I will need to use , for number 9 and 5 we know its antifreeze coolant but number 7 (poer pack unit ) which liquid ???

I'm assuming the same OAT MS.90032 but really not 100% sure.

However, I just noticed my '23 manual states 2.2 quart capacity for the MGU (instead of 1.9) and 3.3 quarts for the PPU (instead of the prior 2.5 spec).

 

[mwilk012]

the question is which fluid I will need to use , for number 9 and 5 we know its antifreeze coolant but number 7 (poer pack unit ) which liquid ???

What numbers are you talking about?

 

[AFD]

Number 7 in the pic

I'm almost certain that both the MGU and PPU use the exact same Mopar OAT MS.90032 antifreeze coolant. On page #493 and 494 of the 2018 Wrangler owner's manual (with both 2.0T eTorque and 3.6L eTorque specs) it distinctly lists "battery coolant" separately from the MGU coolant. Since the generator/MGU is listed and no other batteries on the vehicle are liquid-cooled, the power pack unit (PPU) should be the battery mentioned here.

The OEM part number for the coolant should be 68163849AB for 10-year 50/50 premixed.

https://cdn.dealereprocess.org/cdn/servicemanuals/jeep/2018-wrangler.pdf

 

[Mazin961]

I'm almost certain that both the MGU and PPU use the exact same Mopar OAT MS.90032 antifreeze coolant. On page #493 and 494 of the 2018 Wrangler owner's manual (with both 2.0T eTorque and 3.6L eTorque specs) it distinctly lists "battery coolant" separately from the MGU coolant. Since the generator/MGU is listed and no other batteries on the vehicle are liquid-cooled, the power pack unit (PPU) should be the battery mentioned here.

The OEM part number for the coolant should be 68163849AB for 10-year 50/50 premixed.

https://cdn.dealereprocess.org/cdn/servicemanuals/jeep/2018-wrangler.pdf

Okaay i see , so you mean 5 & 7 & 9 all of them are using the same coolant fluid I guess?

 

[AFD]

Okaay i see , so you mean 5 & 7 & 9 all of them are using the same coolant fluid I guess?

As far as I can tell, that is correct, but hopefully @speedymart or @mwilk012 can confirm.

 

[Gregj]

Okaay i see , so you mean 5 & 7 & 9 all of them are using the same coolant fluid I guess?

Yes, they all use the same coolant.

Gregj

 

[speedymart]

T

As far as I can tell, that is correct, but hopefully @speedymart or @mwilk012 can confirm.

Yes, all use the standard mopar 10 year purple coolant. All cooling systems across our entire fleet use this coolant.

 

[Theweda123]

Has anyone had trouble getting the caps off #7 and #9 (see pic) to add more fluid? Ive tried pushing and turning and all it does is click.

 

[iGeeker]

Has anyone had trouble getting the caps off #7 and #9 (see pic) to add more fluid? Ive tried pushing and turning and all it does is click.

There is a small slot on each black caps. Align the slot to another slot underneath. Then put a flat head screw driver into slot, turn the cap

 

[dstrahm]

There is a small slot on each black caps. Align the slot to another slot underneath. Then put a flat head screw driver into slot, turn the cap

I wonder how many owners (and service persons) put washer fluid in those coolant reservoirs before they changed those cap designs.

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